@article{27e9fe473c114fa49d08a16b62560a4c,
title = "9-Aryl-phenalenones: Bioinspired thermally reversible photochromic compounds for photoswitching applications in the pico-to milliseconds range",
abstract = "Ultrafast photochromic molecules are being actively investigated to meet the demand for fast optical switching systems. Inspired on the irreversible cyclization of 9-phenylphenalenone plant metabolites to yield highly-coloured naphthoxanthenes for the purpose of defense against pathogens, aryl-substituted phenalenones have been developed that undergo a similar but reversible photochromic reaction. The lifetime of the naphthoxanthene photoisomer spans nine orders of magnitude, ranging from tens of picoseconds to tens of milliseconds depending on the electronic properties of the 9-aryl group.",
keywords = "Chromene, Phenalenone, Photochromic, Photoswitch, β-phenyl quenching",
author = "Roger Bresol{\'i}-Obach and Massad, {Walter A.} and Abasi Abudulimu and Larry L{\"u}er and Cristina Flors and Luis, {Javier G.} and Rosquete, {Laura I.} and Grillo, {Teresa A.} and Ommid Anamimoghadam and G{\"o}tz Bucher and Santi Nonell",
note = "Funding Information: Dedicated to the memory of Josep Obach Calafell (1929–2019). This work has been supported by grant CTQ2016-78454-C2-1-R from the Spanish Ministerio de Econom{\'i}a y Competitividad . R. B.-O. thanks the European Social Funds and the SUR del DEC de la Generalitat de Catalunya for a predoctoral fellowship ( 2017 FI_B2 00140 ) and the Vlaanderen Fonds Wetenschappelijk Onderzoek (grant number 12Z8120 N ). Support from the Spanish Severo Ochoa Excellence program for IMDEA Nanociencia is acknowledged ( SEV-2016-0686 ). Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2021",
month = feb,
doi = "10.1016/j.dyepig.2020.109060",
language = "English",
volume = "186",
journal = "Dyes and Pigments",
issn = "0143-7208",
publisher = "Elsevier BV",
}